Page 76 - การวิจัยด้านวนวัฒน์
P. 76

Table 2.   The mechanical properties of some bamboo species (Metric units)


                                            modulus of       stress at      modulus of              shearing (MPa)           Compression        Tension
                                          rupture (MOR)   proportional limit   elasticity (MOE)                                 (MPa)            (MPa)
                     species      part
                                              (MPa)           (MPa)         (x100 MPa)         node           internode        internode         node
                                          green  air dry  green   air dry   green  air dry  green  air dry  green  air dry  green  air dry  green  air dry

                Dendrocalamus    bottom    876    981     620     530      669     992     79.3    78.5     81.4    85.3    458      537     897     1758
                sericeus Munro
                                 middle    840    874     483     479     1596     1109    91.7    93.6     94.6    84.3     521     550     1064    1325


                                   top     724    858     483     593     1873     1262    97.5    98.8     96.0    90.6    526      551     1275    1271

                Bambusa sp
        64
                                   all     512    574     401     433      1457    1322    56.0    56.5     56.4    60.6    328      409      *       *
                Dendrocalamus    bottom    892    1038    352     280     2687     2834    67.3    82.3     61.1    70.5     471     580     880     1343

                brandisii  Kurz
                                   top     729    1097    258     556      1554    2846    61.9    85.9     57.5    71.1    558      633     1144    1619

                Dendrocalamus
                latiflorus  Munro   all    525    532     417     284      1242    2012    77.6     115     45.3    75.4     314     483     618     917
   71   72   73   74   75   76   77   78   79   80   81